#!/bin/bash
# This file is part of the jetson_stats package (https://github.com/rbonghi/jetson_stats or http://rnext.it).
# Copyright (c) 2019 Raffaello Bonghi.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.


# NVIDIA Identify version 
# reference: 
# https://devtalk.nvidia.com/default/topic/1014424/jetson-tx2/identifying-tx1-and-tx2-at-runtime/
# https://devtalk.nvidia.com/default/topic/996988/jetson-tk1/chip-uid/post/5100481/#5100481

if [ -f /sys/module/tegra_fuse/parameters/tegra_chip_id ]; then
    case $(cat /sys/module/tegra_fuse/parameters/tegra_chip_id) in
        64) JETSON_BOARD="TK1" ;;
        33) JETSON_BOARD="TX1" ;;
        24) JETSON_BOARD="TX2" ;;
        25) JETSON_BOARD="Xavier" ;;
        *) JETSON_BOARD="UNKNOWN" ;;
    esac
    if [ "$JETSON_BOARD" = "Xavier" ] ; then
        JETSON_TYPE="AGX Xavier"
    elif [ "$JETSON_BOARD" = "TX1" ] ; then
        JETSON_TYPE="NANO/TX1"
    else
        JETSON_TYPE="$JETSON_BOARD"
    fi
    # Make Jetson Description
    JETSON_DESCRIPTION="NVIDIA Jetson $JETSON_TYPE"
else
    JETSON_BOARD="NO-BOARD"
    JETSON_TYPE="PC"
    JETSON_DESCRIPTION="PC computer"
fi
# Export variables
export JETSON_BOARD
export JETSON_TYPE
export JETSON_DESCRIPTION

# NVIDIA Jetson version
# reference https://devtalk.nvidia.com/default/topic/860092/jetson-tk1/how-do-i-know-what-version-of-l4t-my-jetson-tk1-is-running-/
# https://stackoverflow.com/questions/16817646/extract-version-number-from-a-string
# https://askubuntu.com/questions/319307/reliably-check-if-a-package-is-installed-or-not
# https://github.com/dusty-nv/jetson-inference/blob/7e81381a96c1ac5f57f1728afbfdec7f1bfeffc2/tools/install-pytorch.sh#L296
if [ -f /etc/nv_tegra_release ]; then
    # L4T string
    # First line on /etc/nv_tegra_release 
    # - "# R28 (release), REVISION: 2.1, GCID: 11272647, BOARD: t186ref, EABI: aarch64, DATE: Thu May 17 07:29:06 UTC 2018"
    JETSON_L4T_STRING=$(head -n 1 /etc/nv_tegra_release)
    # Load release and revision
    JETSON_L4T_RELEASE=$(echo $JETSON_L4T_STRING | cut -f 2 -d ' ' | grep -Po '(?<=R)[^;]+')
    JETSON_L4T_REVISION=$(echo $JETSON_L4T_STRING | cut -f 2 -d ',' | grep -Po '(?<=REVISION: )[^;]+')
elif dpkg --get-selections | grep -q "^nvidia-l4t-core[[:space:]]*install$"; then
    # Read version
	JETSON_L4T_STRING=$(dpkg-query --showformat='${Version}' --show nvidia-l4t-core)
	# extract version
	JETSON_L4T_ARRAY=$(echo $JETSON_L4T_STRING | cut -f 1 -d '-')
    # Load release and revision
	JETSON_L4T_RELEASE=$(echo $JETSON_L4T_ARRAY | cut -f 1 -d '.')
	JETSON_L4T_REVISION=${JETSON_L4T_ARRAY#"$JETSON_L4T_RELEASE."}
else
    # Load release and revision
    JETSON_L4T_RELEASE="N"
    JETSON_L4T_REVISION="N.N"
fi
# Write Jetson description
JETSON_L4T="$JETSON_L4T_RELEASE.$JETSON_L4T_REVISION"
# Export Release L4T
export JETSON_L4T_RELEASE
export JETSON_L4T_REVISION
export JETSON_L4T

# Write version of jetpack installed
# https://developer.nvidia.com/embedded/jetpack-archive
case $JETSON_L4T in
    "32.3.1") JETSON_JETPACK="4.3" ;;    
    "32.2.1") JETSON_JETPACK="4.2.2" ;;
    "32.2.0" | "32.2") JETSON_JETPACK="4.2.1" ;;
    "32.1.0" | "32.1") JETSON_JETPACK="4.2" ;;
    "31.1.0" | "31.1") JETSON_JETPACK="4.1.1" ;;
    "31.0.2") JETSON_JETPACK="4.1" ;;
    "31.0.1") JETSON_JETPACK="4.0" ;;
    "28.2.1") JETSON_JETPACK="3.3 | 3.2.1" ;;
    "28.2.0" | "28.2") JETSON_JETPACK="3.2" ;;
    "28.1.0" | "28.1") JETSON_JETPACK="3.1" ;;
    "27.1.0" | "27.1") JETSON_JETPACK="3.0" ;;
    "24.2.1") JETSON_JETPACK="3.0 | 2.3.1" ;;
    "24.2.0" | "24.2") JETSON_JETPACK="2.3" ;;
    "24.1.0" | "24.1") JETSON_JETPACK="2.2.1 | 2.2" ;;
    "23.2.0" | "23.2") JETSON_JETPACK="2.1" ;;
    "23.1.0" | "23.1") JETSON_JETPACK="2.0" ;;
    "21.5.0" | "21.5") JETSON_JETPACK="2.3.1 | 2.3" ;;
    "21.4.0" | "21.4") JETSON_JETPACK="2.2 | 2.1 | 2.0 | DP 1.2" ;;
    "21.3.0" | "21.3") JETSON_JETPACK="DP 1.1" ;;
    "21.2.0" | "21.2") JETSON_JETPACK="DP 1.0" ;;
    *) JETSON_JETPACK="UNKNOWN" ;;
esac
# Export Jetson Jetpack installed
export JETSON_JETPACK

# Read CUDA version
if [ -f /usr/local/cuda/version.txt ]; then
    JETSON_CUDA=$(cat /usr/local/cuda/version.txt | sed 's/\CUDA Version //g')
else
    JETSON_CUDA="NOT_INSTALLED"
fi
# Jetson CUDA version
export JETSON_CUDA

# Read from OpenCV if is installed CUDA
opencv_read_cuda()
{
    # Red if use CUDA or not
    OPENCV_VERSION_VERBOSE=$(opencv_version --verbose | grep "Use Cuda" )
    if [ ! -z "$OPENCV_VERSION_VERBOSE" ]; then
        # Read status of CUDA
        OPENCV_CUDA_FLAG=$(echo $OPENCV_VERSION_VERBOSE | cut -f2 -d ':' | cut -f2 -d ' ' )
        if [ "$OPENCV_CUDA_FLAG" == "NO" ]; then
            # Set NO if cuda is not installed
    	    echo "NO"
        else
            # Set YES if cuda is installed
	        echo "YES"
        fi
        # Remove variable
        unset OPENCV_CUDA_FLAG
        # Remove variable
        unset OPENCV_VERSION_VERBOSE
        return
    fi
    # read NVIDIA CUDA version
    OPENCV_VERSION_VERBOSE=$(opencv_version --verbose | grep "NVIDIA CUDA" )
    if [ ! -z "$OPENCV_VERSION_VERBOSE" ]; then
        # get information
        OPENCV_CUDA_FLAG=$(echo $OPENCV_VERSION_VERBOSE | cut -f2 -d ':')
        OPENCV_CUDA_FLAG=${OPENCV_CUDA_FLAG//[[:blank:]]/}
	    # Remove variable
        unset OPENCV_CUDA_FLAG
        # Set YES if cuda is installed
	    echo "YES"
        # Remove variable
        unset OPENCV_VERSION_VERBOSE
        return
    fi
    echo "NO"
    # Remove variable
    unset OPENCV_VERSION_VERBOSE
    return
}

if hash opencv_version 2>/dev/null; then
    JETSON_OPENCV="$(opencv_version)"
    # Read information about cuda status
    JETSON_OPENCV_CUDA=$(opencv_read_cuda)
else
    JETSON_OPENCV="NOT_INSTALLED"
    JETSON_OPENCV_CUDA="NO"
fi
# Opencv variables
export JETSON_OPENCV
export JETSON_OPENCV_CUDA

# Write CUDA architecture
# https://developer.nvidia.com/cuda-gpus
# https://devtalk.nvidia.com/default/topic/988317/jetson-tx1/what-should-be-the-value-of-cuda_arch_bin/
case $JETSON_BOARD in
    "Xavier") JETSON_CUDA_ARCH_BIN="7.2" ;;
    "TX2" | "TX2i") JETSON_CUDA_ARCH_BIN="6.2" ;;
    "TX1") JETSON_CUDA_ARCH_BIN="5.3" ;;
    "TK1") JETSON_CUDA_ARCH_BIN="3.2" ;;
    * ) JETSON_CUDA_ARCH_BIN="NONE" ;;
esac
# Export Jetson CUDA ARCHITECTURE
export JETSON_CUDA_ARCH_BIN

# Extract cuDNN version
JETSON_CUDNN=$(dpkg -l 2>/dev/null | grep -m1 "libcudnn")
if [ ! -z "$JETSON_CUDNN" ] ; then
    JETSON_CUDNN=$(echo $JETSON_CUDNN | sed 's/.*libcudnn[0-9] \([^ ]*\).*/\1/' )
else
    JETSON_CUDNN="NOT_INSTALLED"
fi
# Export NVIDIA CuDNN Library
export JETSON_CUDNN

# Extract TensorRT version
JETSON_TENSORRT=$(dpkg -l 2>/dev/null | grep -m1 " tensorrt ")
if [ ! -z "$JETSON_TENSORRT" ] ; then
    JETSON_TENSORRT=$(echo $JETSON_TENSORRT | sed 's/.*tensorrt \([^ ]*\).*/\1/' )
else
    JETSON_TENSORRT="NOT_INSTALLED"
fi
# Export NVIDIA CuDNN TensorRT
export JETSON_TENSORRT

# Extract Visionworks version
JETSON_VISIONWORKS=$(dpkg -l 2>/dev/null | grep -m1 "libvisionworks")
if [ ! -z "$JETSON_VISIONWORKS" ] ; then
    JETSON_VISIONWORKS=$(echo $JETSON_VISIONWORKS | sed 's/.*libvisionworks \([^ ]*\).*/\1/' )
else
    JETSON_VISIONWORKS="NOT_INSTALLED"
fi
# Export NVIDIA CuDNN VisionWorks
export JETSON_VISIONWORKS

# Serial number
# https://devtalk.nvidia.com/default/topic/1055507/jetson-nano/nano-serial-number-/
if [ -f /sys/firmware/devicetree/base/serial-number ]; then
    JETSON_SERIAL_NUMBER=$(tr -d '\0' </sys/firmware/devicetree/base/serial-number)
else
    JETSON_SERIAL_NUMBER="UNKNOWN"
fi
# Export NVIDIA Serial Number
export JETSON_SERIAL_NUMBER

# TODO Add enviroments variables:
# - UID -> https://devtalk.nvidia.com/default/topic/996988/jetson-tk1/chip-uid/post/5100481/#5100481
# - GCID, BOARD, EABI
